Koi Fish Swimming in Circle Meaning: Health Warning Signs and Symbolism

Quick Answer Check your koi’s health first, before considering symbolism. Calm, social circling among several healthy fish is normal — often tied to schooling behavior or mating. But frantic, erratic circling (especially in a single isolated fish) can signal a genuine emergency: ammonia or nitrite poisoning, parasites, swim bladder disorder, or in rare cases, a

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